Caudexes with horizontal branches bearing alternate membranous scales. Stems 1 to several from one root, 10-30 cm tall, simple, sometimes branched at middle, glabrous or sparsely hirsute. Basal leaf blade ovate-deltoid, base subtruncate. Cauline leaves sessile, lower ones with petiole up to 1 cm; blade linear-lanceolate or elliptic, 3-8 × 0.4-2.5 cm, both surfaces glabrous or sparsely puberulent, base cuneate, margin crenate or dentate, apex acuminate. Flowers 1 or 2 and terminal or more in a pseudoraceme, or several pseudoracemes forming a narrow panicle; pedicels elongate, 1.5-3 cm. Hypanthium obovoid or obconic, glabrous; calyx lobes subulate, 10-15 × 1-1.5 mm, margin with several pairs of denticles. Corolla blue-purple or light purple, campanulate, 2.8-3.5 cm; lobes deltoid, ca. 1/2 as long as tube. Disk annular, less than 1 mm high. Style shorter than corolla. Capsule ellipsoid, 10-16 × 6-7 mm. Seeds yellow-brown, ellipsoid, 1.2-1.5 mm, 1-ribbed. Fl. Jul-Nov, fr. Sep-Nov. 2n = 34*.

● Forest or thicket margins, shaded scree; 700-3500 m. Taiwan.